Structural Health Monitoring of the Stonecutters Bridge
Scope
The Stonecutters Bridge is a 1,596 metre long dual 3-lane high level cable stayed bridge, with a clear span of 1,018 metres . The Stonecutters Bridge, when completed, will be one of the longest span cable-stayed bridges in the world.
FOS&S monitors the temperature and strain inside the stay cables by inserting several fibre optic strain and temperature chains inside the stay cables. The sensors have been installed inside the stay cable during the fabrication process by the stay cable manufacturer. Each stay cable that is monitored contains 6 chains: four chains for strain measurement and two chains for temperature compensation. The different FBG chains are read out using the FBG Datalogger of FOS&S.